Harmonic was founded by a team with over 100 years of combined experience across institutional trading, fintech, and digital assets — with roots at Citadel, Jane Street, Cantor Fitzgerald, and SALT Lending.
Deliver institutional-grade execution infrastructure and financial services to digital asset treasury companies — through proprietary technology built for the speed and complexity of modern crypto markets.
We enable superior trade execution, real-time risk management, systematic strategy deployment, and efficient capital solutions — reducing slippage, latency, and operational risk across every venue.
C++ co-located execution with 20–30µs tick-to-trade — no vendor dependencies, no shared infrastructure. Every layer owned by Harmonic.
Open-term, non-callable loans with real-time LMS dashboard visibility and no rehypothecation. Your assets, your exposure, your terms.
Built by veterans of Citadel, Jane Street, and top-tier prop trading firms — every layer of the stack meets institutional grade from day one.
Across institutional trading, fintech, and digital assets